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Home >> Suzuki >> 2011 >> SX4 Base, Standard >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Air Conditioning System - Auto A/C >> Diagnostic Information and Procedures >> DTC Check >> Notes
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DTC Check: Notes

CAUTION:
  • When connecting battery to vehicle for this DTC check, be sure to complete the following procedure at least once before performing this DTC check.
    1. Turn on ignition switch.
    2. Turn off ignition switch.
    3. Wait at least 1 second and turn on ignition switch.
  • As DTC B1504 cannot be displayed on SUZUKI scan tool, check B1504 in Not Using SUZUKI Scan Tool .

Otherwise, HVAC control module detects "Back-up Power Supply Circuit Malfunction".
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